AD7767 Analog Devices, AD7767 Datasheet - Page 10

• Manufacturer Part Number: AD7767
• Description: 24-Bit, 15 mW, 109 dB, 128 kSPS/64 kSPS/32 kSPS ADCs
• Manufacturer: Analog Devices

Specifications of AD7767

• Resolution (bits): 24bit
• # Chan: 1
• Sample Rate: 128kSPS
• Interface: Ser
• Analog Input Type: Diff-Uni
• Ain Range: (2Vref) p-p
• Adc Architecture: SAR
• Pkg Type: SOP

AD7767
TYPICAL PERFORMANCE CHARACTERISTICS
AV
otherwise noted. All FFTs were generated using 8192 samples using a four-term Blackman-Harris window.
DD
–100
–120
–140
–160
–180
–100
–120
–140
–160
–180
–100
–120
–140
–160
–180
= DV
–20
–40
–60
–80
–20
–40
–60
–80
–20
–40
–60
–80
0
0
0
0
0
0
Figure 8. AD7767-1 FFT, 1 kHz, −0.5 dB Input Tone
Figure 9. AD7767-2 FFT, 1 kHz, −0.5 dB Input Tone
DD
Figure 7. AD7767 FFT, 1 kHz, −0.5 dB Input Tone
= 2.5 V ± 5%, V
8k
4k
16k
8k
4k
24k
12k
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
DRIVE
32k
16k
8k
= 1.8 V to 3.6 V, V
40k
20k
48k
24k
12k
56k
28k
REF
64k
32k
16k
= 5 V, MCLK = 1 MHz, common-mode input = V
Rev. C | Page 10 of 24
–100
–120
–140
–160
–180
–100
–120
–140
–160
–180
–100
–120
–140
–160
–180
–20
–40
–60
–80
–20
–40
–60
–80
–20
–40
–60
–80
0
0
0
0
0
0
Figure 11. AD7767-1 FFT, 1 kHz, −6 dB Input Tone
Figure 12. AD7767-2 FFT, 1 kHz, −6 dB Input Tone
Figure 10. AD7767 FFT, 1 kHz, −6 dB Input Tone
8k
4k
16k
8k
4k
24k
12k
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
32k
16k
REF
8k
/2. T
40k
20k
A
= 25°C, unless
48k
24k
12k
56k
28k
64k
32k
1
6k